Comprehensive and Detailed Explanation:

An integrated audit merges financial, operational, compliance, and IT audits into a single coordinated review. The key benefit is leveraging a multidisciplinary team with combined skill sets, resulting in a more holistic evaluation of risks and controls.

Option A: Business reviews are important but not the primary benefit.

Option B: Continuous auditing is a separate methodology.

Option C: Better review by team leaders may occur, but that’s not unique to integrated audits.

Option D: Correct — the main advantage is combining diverse audit expertise.

???? ISACA Reference: CISA Review Manual 27th Edition, Domain 1, section on integrated audits and multidisciplinary audit approaches.